DB Engine :: Cannot Connect To Databases

Jul 15, 2015

I have SQL 2012 database on availability group environment..Due to lack of space on SQL log partition. I have added to new hard drive configures on RAID1.Moved the ldf files from active partition to newly created partition.SMS change the path for log drive to new driveRestart SQL server services.I cannot connect to databases anymore and I have also lost all setting of Availability group..Error message

Event logs for Application

Log Name:      Application
Source:        MSSQLSERVER
Date:          16/07/2015 8:32:22 a.m.
Event ID:      5123
Task Category: Server

[code]...

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SQL 2012 :: Applications Cannot Connect Because Logins Cannot Connect To Their Default Databases

Oct 17, 2014

I designed the AlwaysOn wrong, but every time we fail over from primary server to another server, my applications cannot connect because the sql logins cannot connect to their default databases. Once I run the command to link the login with the user in the default database then the users are able to connect. Did I do something wrong when designing AlwaysOn?

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Cannot Connect To Db Engine

Dec 10, 2007

SSPI handshake failed with error code 0x8009030c while establishing a connection with integrated security; the connection has been closed.

Has anyone seen this one before? I am trying to cennect through SSMS

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Cannot Connect To Database Engine

Jan 7, 2012

i installed sql server 2005 but cant connect to database engine. i write (computer name)sqlexpress but it failed. error is:

TITLE: Connect to Server
------------------------------
Cannot connect to rezasqlexpress.
------------------------------
ADDITIONAL INFORMATION:

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)

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Cannot Connect To Database Engine

Apr 30, 2008

Hi,

I've just installed a brand new instance of SQL on a new server. It's for our Helpdesk/Inventory software. All I needed to install was the DB Components and the Tools (primarily for Management Studio). I did not install SQL as a default instance, but called it TRACKIT8 (software using this instance). I have subsequently installs SP2 before trying to connect to the DB.

I am unable to conect to the DB Engine via Management Studio. In the Server name: field, there is a blank space, so I try to browse for a server, but I get nothing. I try to manually type the name of the server (NIASSQL2, localhost etc) into the field, but I cannot connect to the engine at all. I can see the services for the Server and Server Agent have started in the SQL Server Configuration Manager and I am able to change certain field in the properties of the Server and Agent (change the path of the error logs).

Is there something I am supposed to configure before I try to connect via the Management Studio? I am looking to change the paths of the Data Files, as I don't want them on my C: partition. Plus I have other instances I want to create and install. Any help would be greatly appreciated.

Cheers.

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I Cannot Connect To The Database Engine ...

May 4, 2007

I can connect to Analysis Service and Integration Service but I can not connect to the Database Engine. I receive the following error message:



Cannot connect to homebase.

Additional Information:

An error has occurred whlie establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server doesn not allow remote connections. (provider: SQL Network Interfaces, error: 25 - COnnection string is not valid)(Microsoft SQL Server, Error:87)


(Click on OK to continue)

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Cannot Connect To Database Engine

May 22, 2007

Hi! I have a little problem and I need your help.

I have recently installed SQL Server 2005 Developer Edition. I did not install all the features, just the Database engine and Analysis Services. I also updated everything with SQL Server SP2.

So far, so good. But when I tried to connect to the Database Engine, I get a little window with the following message:

"Cannot connect to Valentin-PC (server name)."

"Login failed for user - User Name - ( Microsoft SQL Server, Error: 18456 )".

I have tried just about everything, but to no avail. What is strange is the fact that I can connect to the other server type that I have installed (Analysis Services). No connection problems there.

Can anyone help?

Mucho gracias!

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Sep 21, 2007

I just installed SQL server Enterprise 2005 and connected database engine in SQL server management studio, but it is blank space when choose 'browse for more' at server name field. What's reason to cause this problem?



Questions for this problem:

1. Do I need to open the TCP port 1433 in firewall by hand for connect database engine?

2. I can€™t find the sqlbrowser.exe in SQL server/90/ folder, can I copy this file into it.

3. The SQL server mobile is work; I can connect the new created database. What€™s different to use SQL server mobile and database engine?

4. I got five discs from Microsoft; I have installed DVD server application and pack 2. Do I need to install the library?


Thanks for any help.

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I got to know that this can happen due to unexpected reboot of server. I checked my server and it had actually restarted unexpectedly.URL...

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Can't Connect To Local Database Engine

Jan 20, 2008



I am trying to run MS SQL Server Management Studio Express. According to what I read, I can connect by selecting Database engine, then on server name, I put my computer name sqlexpress. I am using Windows Authentication. Every time, I get:

TITLE: Connect to Server
------------------------------
Cannot connect to kennethsqlexpress.
------------------------------
ADDITIONAL INFORMATION:
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476
------------------------------
BUTTONS:
OK
------------------------------

What am I doing wrong? Thanks for helping me to stop pulling my hair out.

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In the production instance I created a new DB by the name MyDbOld and restored the MyDbOld in the production from the backup of MyDbold.bak in the test instance. Now I have 2 databases in the production instance ie MyDb and 2)MyDbOld. However I find the logical names of both the databases to be the same although the database name and the physical file name to be different.My questions are-:

1) Does it in any manner affect the integrity of the 2 databases if the 2 databases are in the same instance and have the same logical name?
2) Would the dml or data retrieval operations in the 2 databases have any conflict in any manner what so ever?
3) Having a unique database name, and unique file names for the physical files for any database in an instance what is the purpose and significance of additionally having a logical name for a database?
4) Which I could restore a database from the backup of another database in the same instance and at the same time change the logical and physical name of the files to correspond to the new database.

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SQL Server 2005 Cannot Connect To Database Engine...!

Sep 24, 2007

Hello
I've just installed 'SQL server 2005' and it installed the components like .Net2.0 and visual studio 2005 . before installing them I had uninstalled sql server2000 . I ran SQL management studio and tried to connect and makin' servers it doesn't allow me to connect or making any new servers...... it gives me this error
Cannot connect to local.
Additional information:
An error has occured while establishing a connection to the server. ......
error:53)
 
need to solve it....
 
 

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Plz also inform me about the restriction imposed in connectivity by any of the window operating system such as that win 98 wont work or work!

There is no firewall involved. The two computers are in the same room and connected directly to the internet.

Even the ping is not going to either computer.

So what could be the possible problem and the solution.

need urgent

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How To Stop The Connect To Database Engine Dialog

Feb 16, 2008



I am working (or trying to work) in Management Studio. I have one database that I use on my one and only machine. ( I am not using any of the default databases.) I have several queries saved as files, which I open as needed. Every time I open a file I get that VERY ANOYING Connect to Database Engine dialog box. OK, it's no big thing. I don't use Server Authentication so all I have to do is hit enter and I get connected. But why should I even have to hit enter once after I'm already connected?

How can I MAKE IT STOP?

Thanks,

Gregory

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Please help.

Thanks

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Error 18456 - Cannot Connect - Database Engine

Dec 12, 2007

I finally got SQL Server 2005 installed on my Vista Ultimate computer and now I can't connect in SQL Server Management Studio.

I've got a named instance; use the built-in system account; windows authentication mode. I try to connect to

Server type: Database Engine
Server name: RAYWOERNER-PCRAYWOERNER
Authentication: Windows Authentication


and it fails. Please help.

Thanks,

Ray

Here are the technical details:


===================================
Cannot connect to RAYWOERNER-PCRAYWOERNER.
===================================
Login failed for user 'RayWoerner-PCRay'. (.Net SqlClient Data Provider)
------------------------------
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476
------------------------------
Server Name: RAYWOERNER-PCRAYWOERNER
Error Number: 18456
Severity: 14
State: 1
Line Number: 65536

------------------------------
Program Location:
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)
at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)
at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup)
at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
at System.Data.SqlClient.SqlConnection.Open()
at Microsoft.SqlServer.Management.UI.VSIntegration.ObjectExplorer.ObjectExplorer.ValidateConnection(UIConnectionInfo ci, IServerType server)
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Mar 12, 2007

Hello,
I have installed SQL Server 2005 in my PC and during the installation I
have created a predefined instance (I have used Windows autentication).
I could use correctly SQL Server till some days ago, when I changed the
password of my PC login profile.
Now, when I open SQL Server, if I click on the "Connect" button,
the following error message appears (I translate it from italian version)

Unable to connect to "CARLO"
Further information:
An error has occurred while you were trying to establish a connection to
the server. When you connect to SQL Server 2005, this error can be generated
because SQL Server doesn't allow remote connections under the predefined
settings. (provider: Provider Named Pipes, error: 40 - Unable to open a
connection to SQL Server) (Micorsoft SQL Server, error:2)

I'm sure that the error raises because I have changed my PC access
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Can you suggest what have I to do?

Thank you very much

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The following items have been verified:

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OK.

I'm using Microsoft SQL Server 2005 Developer Edition and I installed it under "Local System" on Microsoft Windows Vista Ultimate.

I understand that there are issues of course that occur with this, however I can't seem to understand why what I'm doing isn't working. I'm not using this on any server, just to test out ASP.NET 2.0 applications - nothing more.

I'm getting this error:


TITLE: Connect to Server
------------------------------

Cannot connect to RUSSPC.

------------------------------
ADDITIONAL INFORMATION:

An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=2&LinkId=20476

------------------------------
BUTTONS:

OK
------------------------------

I've installed this via a mixed authentication (as suggested by www.wrox.com).


I tried enabling the TCP/IP and named pipe connections, just as previous people have done, but it hasn't worked. Nor has enabling the SQL Browser.

I'm really at a loss on what to do.

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